chore: fix phpstan errors

src/Controller/Api/UserinfoController.php

@@ -66,6 +66,11 @@ class UserinfoController extends AbstractController
         }
     }
 
+    /**
+     * @param list<string> $scopes
+     *
+     * @return array<string, mixed>
+     */
     private function getClaims(PersonalData $data, array $scopes): array
     {
         // get all available claims